部署consul-docker镜像
先搜索consul的docker镜像
docker search consul
然后选择了第一个，也就是官方镜像
下载镜像
docker pull consul
然后运行镜像
docker run -d –name consul -v /home/root/config:/config –restart=always\
-p 8300:8300 \
-p 8301:8301 \
-p 8301:8301/udp \
-p 8302:8302 \
-p 8302:8302/udp \
-p 8400:8400 \
-p 8500:8500 \
consul agent -server \
-bootstrap-expect 1 \
-ui \
-client 0.0.0.0
consul中每个启动参数的含义，参考了以下链接：
https://www.cnblogs.com/pearlran/p/11225953.html
注册服务
参考链接：
新建一个common项目
新建consulbuilderextensions.cs 、consulservice.cs、healthservice.cs
1 using consul;
2 using microsoft.aspnetcore.builder;
3 using microsoft.aspnetcore.hosting;
4 using system;
5 using system.collections.generic;
6 using system.linq;
7 using system.threading.tasks;
8
9 namespace test.webapi.common
10 {
11 public static class consulbuilderextensions
12
13 {
14
15 // 服务注册
16
17 public static iapplicationbuilder registerconsul(this iapplicationbuilder app, iapplicationlifetime lifetime, healthservice healthservice, consulservice consulservice)
18
19 {
20
21 var consulclient = new consulclient(x => x.address = new uri($"http://{consulservice.ip}:{consulservice.port}"));//请求注册的 consul 地址
22
23 var httpcheck = new agentservicecheck()
24
25 {
26
27 deregistercriticalserviceafter = timespan.fromseconds(5),//服务启动多久后注册
28
29 interval = timespan.fromseconds(10),//健康检查时间间隔，或者称为心跳间隔
30
31 http = $"http://{healthservice.ip}:{healthservice.port}/api/health",//健康检查地址
32
33 timeout = timespan.fromseconds(5)
34
35 };
36
37 // register service with consul
38
39 var registration = new agentserviceregistration()
40
41 {
42
43 checks = new[] { httpcheck },
44
45 id = healthservice.name + "_" + healthservice.port,
46
47 name = healthservice.name,
48
49 address = healthservice.ip,
50
51 port = healthservice.port,
52
53 tags = new[] { $"urlprefix-/{healthservice.name}" }//添加 urlprefix-/servicename 格式的 tag 标签，以便 fabio 识别
54
55 };
56
57 consulclient.agent.serviceregister(registration).wait();//服务启动时注册，内部实现其实就是使用 consul api 进行注册（httpclient发起）
58
59 lifetime.applicationstopping.register(() =>
60
61 {
62
63 consulclient.agent.servicederegister(registration.id).wait();//服务停止时取消注册
64
65 });
66
67 return app;
68
69 }
70
71 }
72 }
1 namespace test.webapi.common
2 {
3 public class consulservice
4
5 {
6
7 public string ip { get; set; }
8
9 public int port { get; set; }
10
11 }
12 }
1 namespace test.webapi.common
2 {
3 public class healthservice
4 {
5 public string name { get; set; }
6
7 public string ip { get; set; }
8
9 public int port { get; set; }
10 }
11 }
两个webapi项目引用这个common项目
并修改各自的 startup.cs
1 public void configure(iapplicationbuilder app, ihostingenvironment env, iapplicationlifetime lifetime)
2 {
3 if (env.isdevelopment())
4 {
5 app.usedeveloperexceptionpage();
6 }
7 else
8 {
9 // the default hsts value is 30 days. you may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
10 app.usehsts();
11 }
12 consulservice consulservice = new consulservice()
13 {
14 ip = configuration["consul:ip"],
15 port = convert.toint32(configuration["consul:port"])
16 };
17 healthservice healthservice = new healthservice()
18 {
19 ip = configuration["service:ip"],
20 port = convert.toint32(configuration["service:port"]),
21 name = configuration["service:name"],
22 };
23
24 app.registerconsul(lifetime, healthservice, consulservice);
25
26 //app.useconsul();
27 app.usehttpsredirection();
28 app.usemvc();
29 }
修改 appsettings.json。 192.168.2.16是本机地址。192.168.2.29是docker中consul的地址。 两个项目的配置类似，区别是本地项目的端口9001、9002。
1 {
2 "logging": {
3 "loglevel": {
4 "default": "warning"
5 }
6 },
7 "allowedhosts": "*",
8
9 "service": {
10 "name": "apiservice",
11 "ip": "192.168.2.16",
12 "port": "9001"
13 },
14 "consul": {
15 "ip": "192.168.2.29",
16 "port": "8500"
17 }
18 }
iis部署 .net core 2.2
参考链接：
部署期间遇到过以下问题
http error 500.35 – ancm multiple in-process applications in same process asp.net core 3
解决方法：两个webapi项目 用不一样的应用池。
部署完成后，测试下 各自项目的 /api/health接口是否正常。
测试网关项目
修改网关项目的配置configuration.json
1 {
2 "reroutes": [
3 {
4 "useservicediscovery": true,
5 "downstreampathtemplate": "/{url}",
6 "downstreamscheme": "http",
7 "servicename": "apiservice",
8 "loadbalanceroptions": {
9 "type": "roundrobin"
10 },
11 "upstreampathtemplate": "/{url}",
12 "upstreamhttpmethod": [ "get" ],
13 "reroutescasesensitive": false
14 }
15 ],
16 "globalconfiguration": {
17 "servicediscoveryprovider": {
18 "host": "192.168.2.29",
19 "port": 8500,
20 "type": "pollconsul",
21 "pollinginterval": 100
22 }
23 }
24 }
修改 startup.cs
1 public void configureservices(iservicecollection services)
2 {
3 services.addmvc().setcompatibilityversion(compatibilityversion.version_2_2);
4 services.addocelot(new configurationbuilder()
5 .addjsonfile("configuration.json")
6 .build())
7 .addconsul();
8 }
9
10 // this method gets called by the runtime. use this method to configure the http request pipeline.
11 public async void configure(iapplicationbuilder app, ihostingenvironment env)
12 {
13 if (env.isdevelopment())
14 {
15 app.usedeveloperexceptionpage();
16 }
17 else
18 {
19 // the default hsts value is 30 days. you may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
20 app.usehsts();
21 }
22 await app.useocelot();
23 app.usehttpsredirection();
24 app.usemvc();
25 }
f5启动项目
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